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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2014 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#include <drm/drm_atomic_uapi.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_vblank.h>
#include "msm_drv.h"
#include "msm_gem.h"
#include "msm_kms.h"
int msm_atomic_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
struct msm_drm_private *priv = plane->dev->dev_private;
struct msm_kms *kms = priv->kms;
if (!new_state->fb)
return 0;
drm_gem_fb_prepare_fb(plane, new_state);
return msm_framebuffer_prepare(new_state->fb, kms->aspace);
}
/* Get bitmask of crtcs that will need to be flushed. The bitmask
* can be used with for_each_crtc_mask() iterator, to iterate
* effected crtcs without needing to preserve the atomic state.
*/
static unsigned get_crtc_mask(struct drm_atomic_state *state)
{
struct drm_crtc_state *crtc_state;
struct drm_crtc *crtc;
unsigned i, mask = 0;
for_each_new_crtc_in_state(state, crtc, crtc_state, i)
mask |= drm_crtc_mask(crtc);
return mask;
}
void msm_atomic_commit_tail(struct drm_atomic_state *state)
{
struct drm_device *dev = state->dev;
struct msm_drm_private *priv = dev->dev_private;
struct msm_kms *kms = priv->kms;
unsigned crtc_mask = get_crtc_mask(state);
kms->funcs->enable_commit(kms);
kms->funcs->prepare_commit(kms, state);
/*
* Push atomic updates down to hardware:
*/
drm_atomic_helper_commit_modeset_disables(dev, state);
drm_atomic_helper_commit_planes(dev, state, 0);
drm_atomic_helper_commit_modeset_enables(dev, state);
/*
* Flush hardware updates:
*/
if (kms->funcs->commit) {
DRM_DEBUG_ATOMIC("triggering commit\n");
kms->funcs->commit(kms, state);
}
kms->funcs->flush_commit(kms, crtc_mask);
kms->funcs->wait_flush(kms, crtc_mask);
kms->funcs->complete_commit(kms, crtc_mask);
kms->funcs->disable_commit(kms);
drm_atomic_helper_commit_hw_done(state);
drm_atomic_helper_cleanup_planes(dev, state);
}
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